Soft Starters vs. Variable Speed - Or Both - June 2011

The article "Soft Starters vs. Variable Speed - Or Both" appeared in the June 2011 issue of Power Transmission Engineering.

SummaryGiven that many different hydraulic systems recommend the use of either frequency converters or cyclic control (soft starter technologies), the question must be asked - Which one of these solutions is the most cost-effective in reducing energy consumption and providing the most satisfactory payback time?